leeway

noun

1. a permissible difference
allowing some freedom to move within limits

Synonym: allowancemargintolerance

2. (of a ship or plane) sideways drift

1. 自由；自由空间；回旋余地
Leeway is the freedom that someone has to take the action they want to or to change their plans.

e.g. Rarely do schoolteachers have leeway to teach classes the way they want...
鲜有学校老师可随心所欲地教书的情况。
e.g. The President said that he wanted to give states more leeway to pursue their own health-care reforms.
总统说他希望给各州更多的医疗改革空间。

2. （需要弥补的）失去时间，落后差距
If you have leeway to make up, you have to work hard because you do not have much time to reach a particular goal.

e.g. He just could not make up the leeway from the earlier stages in which Ryan scored well.
瑞安在前几轮得分很高，他现在再想赶也赶不上了。

1. 风压差,余地：8. elector college 美国选举总统的选举团 | 9. leeway 风压差,余地 | 10. for all practical purpose 事实上,实际

2. 横漂;风压：leeway angle 漂角 | leeway 横漂;风压 | left derivative 左导数